1011100055100 has 36 divisors (see below), whose sum is σ = 2925449493624. Its totient is φ = 269626681280.

The previous prime is 1011100055083. The next prime is 1011100055123. The reversal of 1011100055100 is 15500011101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1011100055100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1685166459 + ... + 1685167058.

It is an arithmetic number, because the mean of its divisors is an integer number (81262485934).

Almost surely, 2^{1011100055100} is an apocalyptic number.

1011100055100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011100055100 is an abundant number, since it is smaller than the sum of its proper divisors (1914349438524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011100055100 is a wasteful number, since it uses less digits than its factorization.

1011100055100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370333534 (or 3370333527 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 1011100055100 its reverse (15500011101), we get a palindrome (1026600066201).

The spelling of 1011100055100 in words is "one trillion, eleven billion, one hundred million, fifty-five thousand, one hundred".